Let's start with Charlize, who told CNN's Piers Morgan in late June, "I am single. I need to find a man."

But Us Weekly says the knockout Oscar winner, who split from Stuart Townsend in January 2010 after nine years together, has been quietly dating Reynolds for months.

"They're exclusive," tattles a source, "and it's very hush-hush."

So hush-hush that the evidence remains largely circumstantial: A spy reportedly spotted the six-pack-abbed actor's motorcycle parked outside Theron's Los Angeles home on the morning on June 5. Ryan, 34, apparently left the residence around 3 p.m, followed by Charlize, 35, a few minutes later.

And it's a good bet that the ostensible hookup will remain under the radar.

"She won't go to an event with him," the source says of the actress, who was most recently seen chatting up Prince Harry. "That's not her style."

Same goes for Reynolds, who tied the knot with ScarJo in an ultra-private 2008 ceremony and largely tried to keep their relationship out of the public eye. They parted ways in December.

As for what supposedly drew him to Theron, "They're both career-focused," notes the snitch, "but not in a crazy way."

As for ScarJo, Ryan remains on friendly terms with his newly Sean Penn-less ex. Seems they met up for a cozy dinner in Los Angeles last week, just days after their divorce was finalized.

"Scarlett was being very flirty with him, staring into his eyes and listening very intently to everything he was saying," an eyewitness recalls to Life & Style, before making a Grand Canyon-sized leap to conclusions. “The way Ryan looked at her, you could tell he still has feelings for her."

While the former flames dined in a tucked-away booth, the eagle-eyed onlooker observed their every movement.

"Scarlett kept pinching Ryan's cheeks and caressing his face and while they were chatting, Ryan would rub her back periodically," recounts the spy. "Something's definitely up."

In an interview with the May issue of Details, Reynolds insisted he wasn't ready to wade back into the dating pool.

"It just seems so kind of alien to me at this point," he explained. "I've been in relationships pretty much since high school. Some people look at that as a good thing. I think wiser people might see that as a house of cards."

Ryan concluded, "I don't think I want to get married again," an attitude that's right in line with Charlize, who recently reiterated that she doesn't see herself ever getting hitched, explaining, "I treat my relationships like marriages, I really do."